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2026 Ford Mustang RTR spec 5 Premium manual yellow splash

The 2026 Mustang RTR Spec 5 is the ultimate expression of what RTR means. It’s the result of more than 15 years of pushing design, engineering and performance further than ever before. It’s not about chasing its peers or repeating what’s been done before – the Spec 5 was born straight from our core DNA.
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RTR Spec 5

The 2026 Mustang RTR Spec 5 is a new production car from RTR, limited to just 50 units for the 2026 model year. The main advantages include: A supercharged 5.0 V8 engine, with over 870 horsepower and 860 lb-ft of torque, and a fully integrated widebody system exclusive to the Spec 5 with exposed carbon fiber components.

RTR DNA

“As RTR has grown over the years, so has our design and engineering capabilities thanks to special projects and motorsport experience, " says founder Vaughn Gittin Jr. "Spec 5 doesn't reference our competitors - it comes from our core RTR DNA. This Mustang embodies everything that what we stand for – confidence, ability and our ‘Ready to Rock’ mentality.”

The beast under the hood

At the heart of the Spec 5 is a supercharged five-liter V8 engine paired with a three-liter Stage 2 Whipple Supercharger System, which delivers over 870 horsepower and 860 lb-ft of torque and is mated to either a six-speed manual or ten-speed automatic transmission.

Forged aluminum and carbon fiber

The Spec 5 is the first Mustang from RTR to use a complete widebody kit - the extended carbon and composite fenders perfectly follow the original body lines of the Mustang S650. Each part has not only an aesthetic but also a functional role - improving downforce, cooling and aerodynamics. Of course, there is also the typical RTR LED daytime running lights in the radiator grille.

The RTR Aero 5 Evo forged wheels are available in Forged Charcoal, Podium Champagne and Vapor Silver.
Michelin Pilot Sport 4S tires – 305/30R20 on a 10.5" wheel at the front and 315/30R20 on an 11" wheel at the rear maximize grip and everyday handling.

Unlimited personalization

Every Mustang RTR Spec 5 owner has the option to customize their car with a standard color from the expanded RTR color palette, which is included in the base price, or enhance it with premium colors and sample painting for a truly custom design.

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